68904590

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{87221}}^1$

素因数の和:87307

約数の個数: 16

約数和(自身を含む): 125599680

約数和(自身を除く): 56695090

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 87221, 174442, 436105, 872210, 6890459, 13780918, 34452295, 68904590]

約数ペア:

[(1, 68904590), (2, 34452295), (5, 13780918), (10, 6890459), (79, 872210), (158, 436105), (395, 174442), (790, 87221)]